﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp4
{
    public partial class EditForm : Form
    {
        public EditForm()
        {
            InitializeComponent();
        }
        public EditForm(int id,string title,string author)
        {
            InitializeComponent();
            this.id = id;
            txtTitle.Text = title;
            txtAuthor.Text = author;
        }
        private readonly int id;
        /// <summary>
        /// 保存
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            //文章名及作者名不为空
            var title = txtTitle.Text;
            var boolTitle = !string.IsNullOrEmpty(title);
            var author = txtAuthor.Text;
            var boolAuthor = !string.IsNullOrEmpty(author);
            //更新
            if (id > 0)
            {
                if (boolTitle)
                {
                    var sql = string.Format("update Articles set Title='{0}',Author='{1}' where Id={2}", title,author,this.id);
                    var res = DbHelper.AddOrAddOrEditOrDeleteSave(sql);

                    if (res == 1)
                    {
                        MessageBox.Show("更新成功!", "提示");
                        this.DialogResult = DialogResult.Yes;
                        this.Close();
                    }
                }
            }
            //新增
            else
            {

                if (boolTitle)
                {
                    var sql = string.Format("insert into Articles(Title,Author)values('{0}','{1}')", title, author);

                    var res = DbHelper.AddOrAddOrEditOrDeleteSave(sql);

                    if (res == 1)
                    {
                        MessageBox.Show("添加成功!", "提示");
                        this.DialogResult = DialogResult.Yes;
                        this.Close();
                    }
                }
                else
                {
                    MessageBox.Show("文章名不能为空!", "提示");
                    this.Close();
                }
            }
        }
        /// <summary>
        /// 取消保存
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.No;
            this.Close();
        }
    }
}
